Properties Of Close Kinematic Pairs In The Cosmos Field

Details Properties Of Close Kinematic Pairs In The Cosmos Field Properties Of Close Kinematic Pairs In The Cosmos Field

May 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...210.3906k&link_type=abstract

American Astronomical Society Meeting 210, #39.06; Bulletin of the American Astronomical Society, Vol. 39, p.153

Astronomy and Astrophysics

Astronomy

1

Scientific paper

Galaxy mergers are believed to play a fundamental role in the evolution of galaxies. In order to observe these mergers and close galaxy pairs at high redshift and avoid many of the problems caused by cosmic variance, a large deep field is necessary. The 2-sq degree Cosmic Evolution Survey (COSMOS) field is ideal for studying the evolution of galaxies with redshift. We have used the extensive multiwavelength dataset available in the COSMOS field to identify a complete sample of luminous (L*) closely separated (5-20 kpc) galaxy pairs out to z=1.2. Here, we analyze a subset of several kinematic galaxy pairs with follow-up spectroscopy obtained with DEIMOS on Keck II. We study the morphology of these pairs using deep HST/ACS imaging along with deep optical and near-infrared ground based imaging. Finally, we examine the infrared properties of these pairs by looking at the infrared fluxes observed in deep infrared imaging obtained with Spitzer IRAC/MIPS at 3.6-24 microns.

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